<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>GIN</title>
</head>
<body>
    <form action="http://localhost:8848/form" method="post"
          action="application/x-www-form-urlencoded">
        用户名：
        <input type="text" name="username" placeholder="请输入用户名">
        <br>
        密&nbsp;&nbsp;&nbsp;码：
        <input type="password" name="userpassword" placeholder="请输入密码">
        <input type="submit" value="提交">
    </form>
</body>
</html>